65 Dart GT seat belt retractors

I’m looking for the seat belt retractors for a 1965 Dart GT. I believe they came with a plastic sheath that held the end of the belt up off the floor. Does anyone know of a source for new ones or reproductions? I bought some retractors with my new seat belts, but they’re just a little mouse trap setup and not like the originals. I new two sets, one for my coupe and one for my convertible.